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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
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Regex Engineer
boss !
brilliantly simple but I would never have thought of that :D
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Nice and easy ! more like 8kyu.
wow !
that's smart !
8 KYU, definitly.
Sometimes 8KYU is like 5/6 here so this Kata with 7KYU is funny :D
8kyu ? Its a joke ? Sometimes 8kyu is add 3 arguments from array, and here it's more advanced, especially assuming that we remove min and max only once.